OBD Adapter Cables
An adapter cable is used to diagnose an older car with an OBD1 connection with newer diagnostic equipment with an OBD2 connection. An adapter cable is not a diagnostic cable. In addition to an adapter cable, you also need an interface or a so-called standalone readout device. Adapter cable is also called an adapter.
OBD1 - OBD2
From around 1996, cars are equipped with OBD2 connections. An OBD2 connection is a 16 pin connection. This was standardized at the time. An OBD1 connection is usually located under the hood. You will usually find an OBD2 connection under the dashboard or in the center console of your car.